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1. CMB 2013 (vol 57 pp. 188)

 A Characterization of Bipartite Zero-divisor Graphs In this paper we obtain a characterization for all bipartite zero-divisor graphs of commutative rings \$R\$ with \$1\$, such that \$R\$ is finite or \$|Nil(R)|\neq2\$. Keywords:zero-divisor graph, bipartite graphCategories:13AXX, 05C25

2. CMB 2011 (vol 56 pp. 407)